Pith Number

pith:N76IX4FR

pith:2013:N76IX4FRI2X2GOUDFCE3IPS5L4

not attested not anchored not stored refs pending

Real hypersurfaces with isometric Reeb flow in complex quadrics

Jurgen Berndt, Young Jin Suh

arxiv:1301.0411 v1 · 2013-01-03 · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N76IX4FRI2X2GOUDFCE3IPS5L4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:37:19.704586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ffc8bf0b146afa33a832889b43e5d5f3f67dbebabb9a21faf531c5b725082e3

Aliases

arxiv: 1301.0411 · arxiv_version: 1301.0411v1 · doi: 10.48550/arxiv.1301.0411 · pith_short_12: N76IX4FRI2X2 · pith_short_16: N76IX4FRI2X2GOUD · pith_short_8: N76IX4FR

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/N76IX4FRI2X2GOUDFCE3IPS5L4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6ffc8bf0b146afa33a832889b43e5d5f3f67dbebabb9a21faf531c5b725082e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5682c8bcadcf35da9ab62c82311115c1ba2f773e124fa7de62ed8e5efac49865",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-01-03T10:04:35Z",
    "title_canon_sha256": "e1836e1a2357021863a1c8048e08728def70f279ebf8d2980327e05d7e64dabf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0411",
    "kind": "arxiv",
    "version": 1
  }
}